Weft-replenishing loom



L. AITKEN.

WEFT BEPLENISHING LOOM. APPLICATION FILED AWL-13,1914. RENEWED OCT. 13. 1919.

Patented Apr. 26, 1921 4 SHEETS-SHEET I.

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L. XETKEN,

WEFT BEPLEFHSHING LOOM.

APPLICATION FILED APR. 13, 19 .4. RENEWED OCT. 13,1919. E W5 86, Patented 26,1921,

4 SHEETS-SHEET 2.

L. AITKEN.

WEFT REPLENISHING LOO'M.

APPLICATION FILED APR. 13. 1914. RENEWED OCT. 13,19n9.

1,375,886 Patented Apr. 26; 1921 1.

IIO

L. AITKEN,

WEFT HEPLENISHING LOOM. APPLICATION FILED APR. 13,1914. RENEWED OCT. 13.1919. 1,375,886..

70 S f w% Z 3 M h ltr r inllll Us the; is.

COMPANY, LA'WREITCE, MASSELC hUSETTS, A CORPORATION 02" MASSACHUS Moira-NOR TO LA'MVRENCE DUCK ETTS.

WEFT-REELENXSHING 1400M.

ing looms, and comprises improvements in the wereplenish1ng mechanism.

Brieny stated, an object of the invention is to provide improved and more eflicient mechanism in looms of the type disclosed in Barrell Patents 1,207,124, granted December 5,

G1" the accompanying drawings:

nigure 1 (Sheet 1) represents an end ele- "2111011 of a loom, omitting elements which necessary to illustrate he invention.

's an end elevation of the shuttle l. a vertical cross section through 7 to support shown by Fig. 2 and through the carrier by which the shuttle is t ansfe i i to the shuttle box of the lay, the carrier being about to remove the loaded shuttle from the loading support.

Fig. 4 (Sheet 2) is a top plan view of the change end of the lay, and includes a portion shuttlecj'ector and the shuttle resented by dotted lines.

" sents a top plan view of the to which the spent shuttle is the ejector. resents a top plan view of the h transfers the sp at shuttle cciver shown by 5 to the i3 suoport shown Figs. 2 and 3 and t I s in the Ag su .port to the shuttle box or tne lay. a vertical cross section through t e box of the lay,'the shuttle carrier. and the shuttle receiver.

o is a vertical cross section similar showing" the parts in a different is avortical cross section through lay and through the Specification of Letters Patent.

filed April 13, 1914, Serial No. 831.355.

Patented Apr. 26, 18 21.

Renewed @ctob 13, 1939.

Serial N0. 335,528.

bobbin magazine and loading support as viewed from the rear.

Fig. 12 is a top plan view, partly in section, of the loading mechanism.

Fig. 13 is an end elevation of a portion of the loom frame, and includes parts of the loading mechanism.

Fig. I is an end elevation of the elements included in Fig. 11.

Fig. 15 is an end elevation, on a larger scale, of the shuttle support included in Fig. 1d. In Fig. 15 the bobbin thread leading from the bobbin in the shuttle is depressed by an arm into athread-receiving eye in the shuttle support.

Fig. 15 is an elevation similar to Fig. 15, showing the loaded shuttle removed from the support as if being transferred to the shuttle box, the bobbin thread being; caught by a hoolr to effect the threading; of the shuttle while it is moving toward the shuttle box.

Fig. 17 (Sheet 4) is a top plan 'iew of the loading support and a loaded shuttle therein.

Fig. 18 is a front elevation, on a larger scale, of one end of a shuttle.

19 is a vertical section in a plane from front to rear through the shuttle supportand shuttle as shown by Fig. 17. This ngure illustra' s a cutting device by which t ieweft end or 1e spent bobbin is severed.

Fig. 20 is a diagram representing in plan view a spent bobbin, the cutting device and the adjacent selvage of the woven fabric, the relation indicating the relative positions when the spent bobbin is about to be ejected from the shuttle resting upon the loading support.

I. :31 (Sheet 1) is a sectio through the ructure intersected by line cc of 1. This loom employs two shuttles and bobbin magazine. The shutt es are used al ternately and are interchanged by suitable automatic mechanism as often as it is neces Sillf. to replenish the weft. W hen a change of shuttles is required, the weaving;- mecha nism is automatically stopped by suitable well-known stop mechanism and the power is connected to the shuttle-changing mechanism. The latter transfers a loaded shuttle from the loading support to the shuttle box of the lay ant transfers the spent shuttle to the loading support. lVhen the shuttles have been interchanged, the power is automatiically disconnected from the shuttlechanging mechanism and is connected to the weaving mechanism, whereupon the loom resumes weaving. While the spent shuttle rests upon the loading support, suitable loading mechanism is automatically operated to transfer a bobbin from the bobbin magazine to the spent shuttle. I employ a bobbin magazine and shuttles similar to the well-known Northrop magazine and shuttle. I have not shown the automatic stop mechanism nor the clutch mechanism by which the power is disconnected from the weaving mechanism and connected to the shuttlechanging mechanism, and vice versa, as any mechanism suitable for this purpose, such as that used by the looms built by the Stafford Company, of Readville, Massachusetts, may be employed.

The main frame members of the loom are indicated at 20, and the crankshaft 21, connecting-rod 22, lay 23, swords 24, and roclrshaft are all arranged according to the well-lrnown practice. A cam shaft 26 carries the several cams which operate the shuttle-changing mechanism. Tris cam shaft remains stationary while the crankshaft 21 is rotating, but is driven by the aforesaid automatic clutch mechanism when the crankshaft comes to rest. i i lien the cam shaft has completed its cycle, the clutch mechanism automatically disconnects the power from the cam shaft and connects it to the crankshaft. For this purpose the cam shaft is provided with cam 27 which acts upon a lever 28 to move a starting rod 29 in the direction indicated by an arrow in Fig. 1. The rod 29 is pivotally connected to an arm 30 which is aiii-Xed to a rockshaft 31. The rockshaft extends from the change end of the loom to the opposite end where the clutch mechanism is located. The elements of the starting mechanism which are illustrated are similar to those of the Stafford loom hereinbefore mentioned, and as the operation is like that of the Stafford loom, further description will not be necessary.

The two shuttles are indicated respectively at a and 5c. vVhen the condition of the Weft in the operating shuttle requires a change of shuttles, the automatic stop mechanism causesthe weavingmechanism of the loom to come to rest when the operating shuttle is in the shuttle box at the change end of the lay and when the lay is in the position shown by Fig. 1. At this time the elements which form the shuttle box at the change end are in the position shown by Fig. 9, excepting that this figure is set so that the top surface of the lay is horizontal, instead of inclined as shown by Fig. 1. It is to be understood that the horizontal arrangement as shown by Figs. 7, 8,9 and 10 is shown merely for the purpose of facilitating the drawing of the figures.

The shuttle m as shown by Fig. 9 is be tween the shuttle binder 32 and a movable shuttle-box front 33. In due course the member 33 is raised to permit an interchanging of shuttles. (See Fig. 10.) t is carried by arms 34 which are mounted upon a pivot fin arm 36, rigidly related tothe arms 34, is connected by a rod 37 to a lever 38 which is actuated by a cam 39. T he fultrum of the lever is indicated at 40. A spring 41 (Fig. 1) connected to one of the arms exerts a downward pull to return the shuttle-box front 33 to shuttle engaging position when the cam 39 permits such return.

lifter the lower edge of the front 33 has risen above tl e top of the shuttle to, it operates an ejector 42 by which the shuttle is moved forward to a receiver Although the upward movement of the front 33 is positive, the ejecting movement of the ejector is yielding as the result of providing yielding; means for transmitting movement from the front 33 to the ejector. My purpose in providing yielding means is to avoid injuring the shuttle in case the shuttle should become caught. The ejector is fixed to an arm 44 which is mount-es to swing upon a pivot 45. A. separate piece 46 is arranged upon the pivot 45 in position to be engaged by a cam surface 33 on the front 33. The member 46 is movable relatively to the arm 44, and ejecting movement is transmitted from the one to the other by a compression spring; 47. This spring is disposed between ears 48 and 49 formed respectively on the members 46 and 44. A bolt 50 extends loosely through the ears and through the spring", and is provided with a nut 51 whereby the ears are prevented from being separated too far by the spring; 47. The bolt serves to determine the normal adjustment of the members 44 and 46. -A coil spring 52 is arranged to engage the arm for the purpose of retracting the ejector. T 1e operating cam 39 is so formed that the front 33 rises continuously until it reaches its highest position, thereby imparting ejectinp; movement to the ejector, and the cam then permits the front 33 to descend part way so as to permit the spring 52 to retract the ejector. The front 33, however, is held at its intermediate position for a sufiicient period of time to permit the approaching; loaded shuttle to pass under it. The front is thereafter permitted to descend to its initial position.

Referring to Figs. 9 and 10, the cam sur face 33 causes a diminution in the speedof the ejector 42. An arrow in Fig. 9 inclicates the point of the cam 33 which first touches the tip of the piece 46. The Point of contactrchanges as the ejector moves forward, because the cam member and piece 46 swing about difierent axes. The reason for retarding the movement of the ejector is to avoid throwing the ejected shuttle with too great force against the receiver 43. It is desirable to eject the shuttle as quickly as possible in order to give the other elements s llicient time in which to operate. and for this reason the ejector is arranged to be moved rapidly at first. The shuttle is thus transferred quickly to the receiver, and, since the rate of the ejecting movement diminishes, the tendency to cause a rebound of the shuttle is avoided.

The receiver for the ejected shuttle is shown in plan by Fig. 5. In its initial position its shuttle-supporting surface is substantially flush with the top surface of the shuttle box. The receiver, after receiving the spent shuttle, is raised above the path of the approaching loaded shuttle, and while the shuttle carrier hereinafter described is against the shuttle box the receiver 48 de seends to deposit the spent shuttle upon the carier. The receiver is so formed that it engages the shuttle only at the ends and provides a suitable space for the reception of the shuttle carrier. The receiver (see Fig. 5) is provided with substantially vertical flanges 53 which are arranged in guides carried by the shuttle box. A plunger 55 is. ftiliXBCl to the receiver and extends downwardly through a guide 56 carried by the lay and through a guide 57 carried the rockshaft 25 on which the swords are mounted. A compression spring 58 coiled about the plunger normally depresses the same to hold the shuttle-supporting surface of the receiver flush with the shuttle-supporting sur' ace ofthe shuttle box. This spring, as shown, is disposed between the guide 56 and a collar 59 which is affixed to the plunger. The receiver is raised by a lever 60 and cam 61. The fulcrum of the lever is at l0, and the free end of the lever (see Fig. l) is arranged between two ears 62 which are formed upon the collar 59. The lifting surface of the lever is substantially concentric with relation to the axis about which the lay swings, so that the lever and collar will always be in cooperative relation, notwithstanding the oscillatory niover ient imparted to the collar by the forward and back movement of the lay. As shown by and 5, the shuttle box is provided with recesses 6d, and the receiver is provided with lips 65 arranged to occupy said When the receiver is in shut- 1 g position, as shown by Figs. 1, 9 and 10, the lips 65 rest upon the bottoms of the recesses (i i, and the shuttle-supportsurfaces of the shuttle box and receiver are thus caused to be substantially flush. The shuttle carrier is indicated at 66. It is aiiixed to the upper end of a lever 67 whose fulcrum is at 68. The ca rier is moved to file rear by a spring 69 and is TGCQSSES.

moved toward the front by a cam 70. The cam en ages a roll 71 carried by the lever 67. The carrier has shuttle-supporting portions 72, 72 and shuttle-supporting portions 73, 73. The portions 72 carry the spent shuttle to the loading support hereinafter described, and the portions 7 3 carry the loaded shuttle to the shuttle box. The carrier is provided with a movable shuttleengaging member 7 4 which is mounted upon a pivot 75. One function of the member 7% is to'hold the loaded shuttle so securely that it cannot slip from the desired position on the supporting portions 7 3 while being transferred to the shuttle box. Another function of the member 7% is to hold the sp nt shuttle securely in the desired position upon the portions 72. The member 74lis provided with tongues 76 which are arranged to hook under the lower edge of the shuttle and occupy the chamber in which the bobbin a is carried. (See Fig. 7). Be-

cesses 77, shown best by Fig. 4, are formed in the shuttle-supporting surface of the shuttle box to receive the tongue 76 as shown by Fig. 7. The carrier remains stationery for a brief period while the receiver 43 de scends to deposit the spent shuttle 02 upon the shuttle-supporting portions 72. The spent shuttle is deposited between upwardly extending lips 79 of the carrier and upwardly projecting portions 80 of the shuttle retainer 7%. After the spent shuttle has been deposited upon the portions 72, the shuttle-box front 83 descends to the position shown by Fig. 8. The member 33 in engages the portions 80 and depr sses the tongues 76 below the bottom of ie loaded shuttle to (see 8), the recesses 77 being suliiciently deep for this purpose. At the same time, the shuttle-bot: front 33 forces the spentshuttle :0 against the lips 79. For this purpose the member provided with cam surfaces 81. The lower edge of the member 33 is now below the top of the loaded shuttle, and is therefore in position to lreep the loaded shuttle in the shuttle box when the shuttle carrier is retracted from the lay. Gain new acts to move the shuttle carrier to transfer the spent shuttle :0 to the loading support. When the projectingpcrtions of the shuttle retainer escape from the lower edge of the shuttle-box front 33, a spring 82 swings the shuttle retainer upwardly until the latter strikes the boc of the carrier indicated at 66. The projecting portions 86 are thus placed in position to keep the spent shuttle against the lips 79. The shuttle box front 33, upon being released by the portion 80, springs back to its initial position, shown by Fig. 9.

The loading support, upon which the spent shuttle rests while recei ring a full bobbin, is shown best by Figs. 11 and 17 bobbin magazine of the Northrop loom.

and is indicated at 83. It is formed to provide a space S 1 through which the carrier passes and through which the spent bobbin a drops when the latter is discharged from the bottom of the shuttle. The loading support, as shown, is afixed to the breast-beam 85. The spent shuttle travels forward on the carrier until its front side strikes an abutment 86 which forms a part of the loading support. The car *ier, however, continues to'move forward until the substantially vertical faces 87 of the retainer 7 l (seeFig. 6) have passed beyond the front side oi the shuttle. The shuttle retainer 7 1 escapes from the spent shuttle in consequence of being depressed by'the shuttle. When the projections 80 have passed beyond the shuttle, the retainer 7% is again raised by its spring 82.

Following an interchange oit shuttles the weaving mechanism is set in operation and the spent shuttle resting on the loading support 83 is loaded with a full bobbin. The

loading mechanism has not as yet been described. Vhen the shuttle carrier is moved to tran. er a loaded shuttle from the loading support to the shuttle box ee Fig. 3), the faces 87' or". the shuttle retainer 7l push agains; the front ide or" the loaded shuttle nd thus move the shuttle towardthe shuttle boX. The loaded shuttle is lifted from the loadingsupport 83 by the supporting portions 73 of the carrier, the front wall of the shuttle thus entering the grooves 88 (Fig. 0) between the abutments 8? and the retaining tongue 76.

The bobbin magazine is indicated as a whole at 90. As previously stated, this magazine is in general similar to the well-known it has a rotatable element '91 bywhich the i ll bobbins o are supported in a circular series. The rotatable element is rotated step by step to arrange the bobbins successively in preliminary l ading position, as shown by Figs. 11 and 13, from which position they are depressed by a loader Although the op eration of the Northrop magazine and the shuttle structure are well known, it may be well to state that when a full bobbin is trans tel-red from the magazine to the shuttle the of the magazine, A- coil-spring 94 is arranged to normally raise the loading arm.

in actuating arm 95 is rigidly related to the arrow in Fig. 18, its movement is transmit ted'by tl espring 98 to the arm 95 of the loader, provided the loadingmovement of the leaner is not unduly opposed. ll the .iovement of the-loader should unduly opposed, the spring 98 will yield to permit the aforesaid movement of the arm 97.

.ris shown by Fig 13, the lower end of the 97 is pivotally connected to the forward end of member 100. The rear end 0-5100 is V-shapec. and is adapted to occupy a vshaped notch formed in a striker 101 which swings to and fro with the lay. Ercepting as hereinafter specified, the member 100, according to the present arrangement of mechanism, remains in the position shown by full lines in Fig. 13. it is supported in this positionby an otlset member 102 carried by a lever 103. The fulcrum of tee lever is at 104. The lower end of the lever is arranged to be engaged by a cam 105 carried by thecam shaft 26. l Vhile the member 100 remains in the position shown 'by' wardly to the position indicated by dotted lines, the pointed end of the member 100 being thus placed in the path of the striker 10. A latch, indicated l. l3 106,' serves to support the member 100 in its raised position, until the member 100 is released as hereinafter specified. A projection 107, shown in the form of a pin and carried by the member 100, cooperates with the latch. The latch is mounted upon a pivot 108 and is provided with a weight 109' which normally holds the latch against the rear side or the pin. During the cycle or the cam shaft the pin is raised above the top or the latch, and the latch, being thus released, is moved by the weight 109 to the position indicated by dotted lines. The lever 1103 returns without pause to the position shown, but the pin 107 rests upon the upper end oi the latch, thus supporting the member 100 in thepath of the striker. W hen the weaving mechanism is subsequently set in operacarries the pin 107 away fromthe latch; and

when the member 100 is released by the striker 101, the member 100 drops upon the member 102, the pin 107 at this time be ing in front of the latch. When the member 100 is moved to the rear by the returning spring 9 1 (Fig. 12) the pin 10'? strikes the latch and moves the same f om dotted line position to full line position, the parts thus assuming their initial position.

1 have provided the loading mechanism with improved means for laying the weft end a in the throat a of the shuttle. The rotatable element of the magazine includes notched disks 110 and 1 1 across whose rims the weft ends are drawn as shown by'F 11. The weft ends are secured to weftend holder 112 in the well-known manner. The substantially horizontal stretches of the weft threads extending between the disks 110 and 111 are carried against a fixed abutment 113 which, as shown. is in the form of a pin anc extends upwardly from the loading support. As each bobbin in the magazine is moved to preliminary loading posi tion, its weft end stands above and substantially in vertical alinement with the throat of the shuttle. Then the loading arm 92' is depressed to transfer a loaded bobbin from the magazine to the shuttle, an arm 11 1 engages and depresses the stretch of weft thread which is between the disks 110 and 111. The arm 114 is carried by the loading arm 92, the arrangement being shown best by Fig. 12. As shown by Fig. 15, the upper edge of the end wall 115 of the loading support is below the top of the shuttle. This arrangement is to enable the weft thread to enter the throat of the shuttle while the shuttle is upon the loading support. l Jhen the arm 11 1 depresses the weft thread, the pin 113 guides the thread to the throat 116 and into the eye 117 of a thread holder 118. The thread is then retained in the eye by a hook 119. When the arm 11d rises, the thread is held by the hook 119. The holder 118 is set into the end wall 115. A movable thread hook 119 is afiiXed to a rockshaft 120 whose bearing is provided by a bracket 121 formed upon the loading support. The rockshaft carries also ashuttle-retaining member 122 whose function is to hold the shuttle against the abutment 86 for loading, and until a subsequent change of shut tles is required. spring 120 1'?) facts to depress the members 119 and 122 to the position shown by solid lines in Fig. 2, but they are raised and held by the shuttle carrier 66. For this purpose the rocksnaft 120 is provided with an arm 123 which arranged to be engaged by the under side of the shuttle carrier when the carrier is moving toward the front of the loom. l /hile the carrier remains in its foremost position it engages the arm 123 and thus locks the member 122 in shuttle-engaging position. When, however, the carrier moves to the rear to pick up the loaded shuttle, it releases the arm 123, whereupon the shuttle locking member 122 drops out of the path of the shuttle. and the thread-holder 119' at the same time carries the weft thread downwardly (see 1* 16) to such position that the thread will be drawn farther into the throat of the sauttle as the shuttle moves toward the shuttle box. The weft thread is thus carried into the throat of the shuttle, sufiiciently for weaving, before the shuttle reaches the shuttle box. it has been stated that the loaded shuttle passes under the raised shuttle-box front In consequence of this operation, the weft thread extending from the loaded shuttle in the shuttle bod to the thread holder 118 extends under the iember 33, and when the latter drops to its normal position, as shown by Fig. 9, it depresses the underlying thread more firmly into the throat of the shuttle.

l have provided a device which is operated automatically to sever the weft thread of the spent bobbin at a point near the bobbin. This device is shown best by the figures on Sheet 1. At the right of Fig. 20 1 have represented conventionall a small fragment of the woven fabric (Z. The weft thread running from the fabric to the spent bobbin a is indicated at (4 This thread, of course, extends through the throat of the spent shuttle when the latter is deposited upon the loading support 83. The cutting device is indicated at 12 1 and is mounted upon the loading support. For convenience I have employed the wellknown hand shears commonly used by weavers and have provided suitable mechanism for operating one of the shear blades to sever the threads. As shown by Fig. 19, the shears 12% are arranged in a case 125, the latter being affixed to the loading support. The shears are made of a single piece of steel, and normally sprin open. They are so ceive the weft thread a when the spent shuttle is traveling toward the loading support. The front side of the shuttle is provided with a socket 128 to receive the points of the shears. This socket is close to the mouth of the throat a (see Fig. 18) and is traversed by the weft thread which issues from the throat. When the empty shuttle .is being transferred from the shuttle box to the loading support, the thread 1 extends across the socket 126 in such position that it enters between the points of the cutting device. The continued forward movement of the shuttle carrier after the spent shuttle has been deposited upon the loading support causes the cuttingof the weft thread a The shuttle locking device 122, upon being moved to shuttle-lockingposition, acts upon a spring 12. which in turn acts arranged as to be open to redevice and the spent bobbin.

a is severed close to the mouth of the throat a before the loading mechanism has upon a member 128 which is loosely mounted upon the rockshaft 120. lhe member 128 has a finger 129 which is thus raised against the under side of the lower shear member been operated to transfer a full bobbin to the spent shuttle. l fhen the loading mechanisnris subsequently operated, the spent bobbin upon being ejected carries with it the short weft end which was formerly in the throat a of the shuttle, thus clearing the throat for the reception of the new weft thread before the latter enters the throat.

I claim:

1. A weft-replenishing loom comprising in combination a movable bobbin magazine, a shuttle support, means arranged to move said magazine step by step to place the bobbins therein successively in a predetermined relation to said support, means movable with said magazine for carrying the weft ends of the bobbins, a thread-guide affixed to said support in the path of the weft-ends to register the latter relatively to the throat of the shuttle, means arranged means for moving the same to permit discharging the shuttle from the shuttle box,

' can ejector arranged to eject the shuttle from the shuttle box, and yielding means arranged to transmit movement from said shuttle-box front to said ejector to eject the shuttle. V

' 3. A weft-replenishing loom comprising, in combination, a lay and change-slmft that operate alternately, a bobbin-magazine, a bobbin-engaging device arranged to transfer a full bobbin from said magazine to a the first beat of the lay following an opera tion of the change-shaft.

4-.- A shuttle-ch anging loom comprising in combination a movable shuttle-box front, means for moving the same from and to moving said carrier to transfer said shuttle a shuttlecarrier and means for movin position, shuttle-loading means arranged to put a full bobbin into a shuttle, a shuttle carrier, means arranged to transfer the spent shuttle from the shuttle box to said. carrier, means carried by said shuttlebox front for engaging the shuttle on said carrierto locate the shuttle relatively to the carrier, and means for, moving said carrier to transfer said shuttle to said 102 ing means.

.5, e. shuttle-changing loom comprising in combination a movable shuttlebox front, means for moving the same from and to shuttleengaging position, shuttle-leading means arranged to put a full bobbin into a shuttle, a shuttle carrier having an abutment arranged to engage one side'oit the shuttle thereon, means arranged transfer the spent shuttle from the shuttle box to said carrier, said shuttle-box front having a surface arranged to force the shuttle laterally against said abutment, and means for shuttle-engaging to said loading means.

6. A shuttle-changingloom comprising in combination a support for a loaded shuttle, a shuttle carrier and means for moving the to tranfer a loaded shuttle from said support to the shuttle box, and confrontingv abutments arranged on said carrier to engage opposite surfaces of the shuttle to prevent lateral movement of the shuttle relatively to the carrier. r r V 7. A shuttle-changing loom comprising in combination a support for a loaded shuttle, a shuttle carrier and means for moving the same to transfer a loaded shuttle from said support to the shuttle box, and a device arranged on said carrier to extend-into the bobbin chamber of the shuttle to'hold the shuttle. v I

8. A shuttle-changing loom eomprisin, combination a support for a loaded shu vran 'ed on said carrier to engage the inner surface of the wall which forms the bobbin chamber of the shuttle, to hold the shuttle.

9. A shuttle-changing loom comprising in combination a support for a loaded shuttle, a shuttle carrier and means for the same to transfer a loaded shuttle from said support to the shuttle box, and a device movably arangecl on said carrier to engage and hold the shuttle. v p

10. A. shuttle-changing loom comprising in combination a support for loaded shuttle, a shuttle carrier and means for moving the same to transfer a loaded shuttle from said support to the shuttle box, and a -device arranged on said carrier to extend upwardly'through the bottom or the shuttle to hold the shuttle.

11. A. shuttle-changing loom comprising in combination a support for a loaded shuttle, a shuttle carrier and means for moving the same to transfer a loaded shuttle from said support to the shuttle box, a device movably arranged on said carrier to engage and hold the shuttle, and means arranged to move said device to release the shuttle.

12. A shuttle-changing loom comprising in combination a movable shuttle-box front and means for ioving the same from and to shuttle-engaging position, a support for a loaded shuttle, a shuttle carrier and means for movin the same to transfer a loaded shuttle from said support to the shuttle box, and a shuttle-engaging device movably ar ranged on said carrier to keep the shuttle in place on said carrier, said device being arranged to be moved by said shuttle box front to release the shuttle.

13. A shuttle-changing loom comprising in combination a movable shuttle box front, a shuttle receiver adjacent the shuttle box, a shuttle-engaging member arranged to transfer the spent shuttle from the shuttle box to said receiver, means arranged to move said shuttle-box front to permit the shuttle to be transferred to said receiver, and means arranged to transmit movement from said shuttle-box front to operatesaid shuttle-engaging member, said means having provisions for causing an initially rapid and diminishing speed of transferring movement of said shuttle-engaging member.

A. A Weft-replenishing loom comprising in combination a bobbin magazine, means arranged to transfer a full bobbin from said magazine to a shuttle, means arranged to depress the outlying bobbin thread upon the top of the shuttle and into a thread-holding device, said device being arranged to hold the thread against the top of the shuttle, whereby said thread is moved laterally into the throat of theshuttle when the shuttle is transferred to the shuttle box of the loom, and means arranged to transfer said shntt o to said shuttle boX.

15. A weftreplenishing loom comprising in combination a bobbin magazine, a bobbin engaging member and its operating means arranged to transfer a full bobbin from said magazine to a shuttle, and a member carried by said bobbin-engaging member and arranged toengage the Weft thread beyond the end of the shuttle and move the thread into the throat of the shuttle.

16. A Weft-replenishing loom comprising in. combination a bobbin magazine, a Weft end holder, means arranged to transfer a full bobbin from said magazine to a shuttle, thread-engaging means arranged to move the Weft thread into the throat of the shuttle. a thread guide arranged to guide the Weft thread to said throat of the shuttle, and a thread hook arranged to engage the Weft thread outside the shuttle tohold the Weft thread in said throat, said thread-engaging means being arranged to move the thread into said hook.

17. A weft replenishing loom comprising, in combination, a lay and a change-shaft that operate alternately, a bobbin-magazine, a bobbin-engaging device arranged to transfer a full bobbin. from said magazine to a shuttle, a member arranged to be movable to and from the path of the lay, means arranged to be actuated by said change-shaft to move said member into the path of the lay to be moved by the latter, and yielding means arranged to transmit to said bobbinengaging device the movement that said member receives from the lay, whereby the operation of said bobbin engaging device is caused by the first beat of the lay following an operation of the change-shaft.

18. A shuttle-changing loom, comprising, in combination, a bobbin magazine, means for transferring a full bobbin from said magazine to a spent shuttle, means arranged to interchange the filled shuttle and a spent shuttle in the lay, and means arranged to sever the thread connecting the fabric and the spent bobbin at a point contiguous to the shuttle in which said spent bobbin is arranged.

19. A shuttle-changin loom, comprising, in combination, a bobbin magazine, means for transferring a full bobbin from said magazine to a spent shuttle, means arranged to interchange the filled shuttle and a spent shuttle in the lay, and means arranged to lever the thread of the spent bobbin While said bobbin is in the shuttle.

20. shuttle-changing loom comprising, combination a bobbin magazine, a support for supporting a shuttle adjacent said mag azine for loading, means arranged to interchange a spent shuttle in the shuttle box of the loom and a filled shuttle on said suppor means arranged to sever the bobbin thread leading from the spent bobbin in the shuttle on said support to the Woven fabric in the loom, and means arranged to transfer a full bobbin from said magazine to the shuttle on said support.

21. A shuttle-chan ing loom comprising in combination shu e-loading means arranged to put a full bobbin into a shuttle, a shuttle carrier having an abutment arranged to engage one side of a shuttle there on, means arranged to transfer a spent shuttle from said shuttle box to said car rier, means arranged to force the shuttle against said abutment on said carrier. means carried by said carrier and arranged to keep the shuttle against said abutment, and means arranged to move said carrier to transfer the shuttle to said loading means.

shuttle-changing loom comprising in combination shuttle-loading means arranged to put a full bobbin into a shuttle, shuttle carrier, means arranged to move said carrier to transfer a loaded shuttle from said loading means to said shuttle box, means arranged to transfer a spent shuttle from said shuttle boX to said carrier, means arranged to move said carrier to transfer the spent shuttle to said loading means, and shuttle-engaging means carried by said carrier and arranged to keep the loaded shuttle in one position on said carrier and to kee the spent shuttle in another position on sai carrier.

23. A shuttle-changing loom comprising,

putting a full bobbin into a shuttle, a shuttl carrier having an abutment arranged to engage one side of a shuttle thereon, means for transferring a spent shuttle from the shuttle-box to said carrier, means arranged to force the shuttle against said abutment on said carrier, and means for moving said carrier to transfer said shuttle to said loadin means. Z

ln testimony whereof I have affixed my 25 signature in presence of two Witnesses.

LEONARD AITKEN.

Witnesses: V

WM. L. BARRELL, G. F. REED. 

